JP6118477B1 - Optometry system - Google Patents

Abstract

An object of the present invention is to provide a small and light optometry system using a portable terminal such as a smartphone or a tablet terminal. An optometry system according to the present invention is used in combination with an information terminal having an imaging function, and includes a base 2b and a fixing member 2c for fixing the position to the portable terminal. A housing 2, a photographic lens 3 disposed in the housing 2, a shaft member 4 rotatably provided on a base 2 b of the housing 2, and a shaft member 4 centering on the shaft member 4. And a slit lamp unit 5 that is rotatably provided. The slit lamp unit 5 includes a light source, a condenser lens, a filter unit, a projection lens, and an illumination prism. [Selection] Figure 1

Description

  The present invention relates to an optometry system that uses a slit lamp that projects slit-shaped illumination light spots on the eyes of a subject, and more particularly to a small and lightweight optometry system that uses a portable terminal such as a smartphone or a tablet terminal.

  Conventionally, a slit lamp microscope using a slit lamp that projects slit-like illumination light spots on the eyes of a subject is generally used as an inspection instrument that is the basis of ophthalmologic examination.

  According to the slit lamp microscope, it is possible to observe various lesion sites by providing variations in the illumination method for the eye to be examined. In other words, by irradiating the subject's eye with light from the light source of the slit lamp while changing the angle, color, and width, the outer eye part (eyelid, conjunctiva, sclera), anterior eye part (cornea, Anomalies of the anterior chamber, lens), anterior vitreous body and fundus structure.

  As this type of slit lamp microscope, for example, Patent Document 1 discloses a slit lamp microscope capable of acquiring a wide area image of an eye to be examined. The slit lamp microscope of Document 1 includes an illumination system and an imaging system, the illumination system includes an illumination focusing mechanism, and the illumination system illuminates the eye to be examined with slit light. The illumination focusing mechanism is used to change the focus position of the slit light, and the imaging system plays a role of guiding the return light of the slit light from the eye to be examined to the imaging device.

  On the other hand, the slit lamp microscope has a hand slit as a portable one, and this can similarly examine the outer eye part, the anterior eye part, the fundus oculi and the like.

JP, 2006-159073, A

  However, the slit lamp microscope disclosed in Patent Document 1 is a stationary device, and the size and weight of the entire device is large, and is not suitable for carrying.

  On the other hand, portable hand slits such as those described above have been developed for ophthalmologists and have problems such as being difficult to operate, heavy, and expensive. It is difficult to use. Also, it is difficult to simply take still images and moving images, and it is difficult to use them for remote diagnosis in real time.

  In recent years, the number of home patients has increased, and there are more than hundreds of local governments where ophthalmologists do not exist. Yes. For example, an anterior examination of the eye is indispensable for the examination of an ophthalmic emergency disease such as an acute enrollment attack, but even if there is a hand slit in the facility, a situation in which a non-ophthalmologist cannot use it is expected. Under such circumstances, realization of an optometry system that can be easily operated and is small, light, and low in cost is desired.

  On the other hand, although the capability of an imaging function of a mobile terminal such as a smartphone is increasing today, there is still no optometry system that can easily perform optometry using the imaging function implemented in such a smartphone.

  This invention is made | formed in view of such a subject, The place made into the objective is providing the optometry system which is small and lightweight using a portable terminal, such as a smart phone and a tablet terminal, and has favorable operativity. It is in.

  In order to solve the above-described problem, an optometry system according to a first aspect of the present invention is an optometry system used in combination with an information terminal having an imaging function, and includes a housing and the housing as the information terminal. A fixing member for fixing to the housing, a photographic lens disposed in the housing, and a slit lamp unit connected to the housing.

An optometry system according to a second aspect of the present invention is an optometry system used in combination with an information terminal having an imaging function, and includes a base and a fixing member for fixing the position to the information terminal. A housing provided with the photographing lens disposed in the housing; a shaft member rotatably provided on the base of the housing; and the shaft member rotatable about the shaft member A slit lamp unit.

  Here, the slit lamp unit may include a light source, a condenser lens, a filter unit, a projection lens, and an illumination prism. Furthermore, the filter unit may be composed of a first filter unit having a color filter function and a second filter unit having a slit formed therein. In addition, a color filter may be provided to be openable and closable on the exit surface of the illumination prism of the slit lamp unit. Further, the fixing member is a clamping member, and the fixing member is disposed on the upper portion of the housing, and is fixed in position by clamping the information terminal from the front and rear with the clamping member. Also good.

An optometry system according to a third aspect of the present invention is an optometry system used in combination with an information terminal having an imaging function, and sandwiches the information terminal with a flat plate, a base protruding from the flat plate, and the information terminal. A housing provided with a fixing member for fixing the position; a photographing lens disposed in the housing; a shaft member rotatably provided on the base of the housing; and the shaft member A slit lamp unit that is provided so as to be rotatable about the shaft member and includes a light source, a condenser lens, a filter unit, a projection lens, and an illumination prism. At least one of the color and width of the irradiation light from the gap lamp unit is changed.

  According to the present invention, it is possible to provide an optometry system that is small, lightweight, and has good operability using a mobile terminal such as a smartphone or a tablet terminal.

It is a perspective view which shows the structure of the optometry system which concerns on one Embodiment of this invention. It is a side view which shows the structure of the optometry system which concerns on one Embodiment of this invention. It is a figure which shows the mode of the rotation drive centering on the axial part of the slit lamp unit of the optometry system which concerns on one Embodiment of this invention. It is a figure which shows the structure of the optical system inside the slit lamp unit of the optometry system which concerns on one Embodiment of this invention. (A) And (b) is a figure which shows the structure of the filter part mounted in the slit lamp unit of the optometry system which concerns on one Embodiment of this invention. It is a block diagram which shows the structure of the control system of the information terminal used for the optometry system which concerns on one Embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a perspective view of an optometry system according to an embodiment of the present invention, and FIG. 2 shows a side view of the optometry system.

  As shown in these drawings, the optometry system 1 is used in combination with an information terminal 100 having an imaging function. As information terminal 100, a smart phone, a tablet terminal, etc. are employable.

  The optometry system 1 includes a housing 2. The casing 2 includes a flat plate portion 2a extending with a predetermined width in the longitudinal direction of the information terminal 100, and a base projecting from the flat plate portion 2a in a direction perpendicular to the longitudinal direction of the flat plate portion 2a, that is, in the photographing direction. 2b, and a fixing member 2c that is provided above and fixes the position by sandwiching the information terminal 100. In addition, the photographing lens 3 is disposed in the housing 2 so as to be positioned in front of the camera lens of the information terminal 100.

  On the base 2b, a shaft member 4 standing vertically upward from the upper surface of the base 2b is disposed so as to be rotatable with respect to the base 2b. In this example, the shaft member 4 is connected to the slit lamp unit 5 by two leg members 6a and 6b. With such a connection relationship, the slit lamp unit 5 is rotatable so as to draw an arc locus around the shaft member 4. The internal configuration of the slit lamp unit 5 will be described later, and includes a power supply unit, a light source such as a white LED, a condenser lens, a filter unit, a projection lens, and an illumination prism. However, the internal configuration is of course not limited to this.

  As described above, the optometry system is used in combination with an information terminal having an imaging function, and is provided in the casing 2, the fixing member 2 c for fixing the casing 2 to the information terminal 100, and the casing 2. An optometry system is provided that includes the photographing lens 3 and the slit lamp unit 5 connected to the housing 2. In such a configuration, the eye of the subject can be photographed via the photographing lens 3 while projecting light emitted from the slit lamp unit 5 onto the subject's eye. The captured image can be confirmed in real time by the display function of the information terminal 100. It can also be stored in the storage unit and observed afterwards.

  Therefore, the optometry can be easily performed without selecting a place. That is, after the information terminal 100 is pinched by the fixing member 2c and fixed in position, photographing through the photographing lens 3 is performed while illuminating the subject's eyes with the light emitted from the slit lamp unit 5. Since it can be confirmed immediately on the screen (touch panel) of the information terminal 100, it is expected to be used in the field of emergency medicine. Needless to say, the information terminal 100 may be included in the above configuration to form an optometry system.

  Here, FIG. 3 shows and describes a state of rotational driving about the shaft portion of the slit lamp unit of the optometry system according to the embodiment of the present invention.

  As shown in the figure, the slit lamp unit 5 has a left and right side in a region on the inner side (the information terminal 100 side) of the shaft member 4 around the shaft member 4 rotatably disposed on the base 2b. Are rotatable at angles of θ1, θ2 (0 <θ1 <90, 0 <θ2 <90). However, even in that case, the illumination prism portion of the slit lamp unit 5 is rotatable, so that the irradiation direction can be finely adjusted. By irradiating the eye of the subject with light from the light source of the slit lamp unit 5 while changing the angle, color and width, the outer eye part (eyelid, conjunctiva, sclera), anterior eye part (cornea) , Anterior chamber, lens), anterior vitreous body and fundus structure abnormality can be grasped.

  FIG. 4 shows and describes the configuration of the optical system inside the slit lamp unit of the optometry system according to an embodiment of the present invention.

  As shown in the figure, a white LED is adopted as the light source 12, and the light source 12 is connected to the power supply unit 11. The power supply unit 11 receives power supply from a battery or the like or power supply from the information terminal 1000 by USB connection, and supplies power to the light source.

  On the optical path of the light emitted from the light source 12, a condenser lens 13, a first filter unit 14, a second filter unit 15, a projection lens 16, and an illumination prism 17 are arranged in this order. In addition to the above, a color filter 18 is provided on the exit surface of the illumination prism 17 of the slit lamp unit 5 so as to be freely opened and closed.

  According to such a configuration, the light from the white LED as the light source 12 is collected by the condenser lens 13 and then guided to the projection lens 16 through the first filter unit 14 and the second filter unit 15. It is burned. Then, light is projected onto the illumination prism 17 by the projection lens, and the light path is changed forward by the illumination prism and emitted. At this time, it is also possible to realize a diffuser function by using a filter 18 made of translucent ground glass.

  Here, FIG. 5A and FIG. 5B show and explain the configuration of the filter unit mounted on the slit lamp unit of the optometry system according to an embodiment of the present invention.

  As a filter part, the 1st filter part 14 provided with the color filter function as shown to Fig.5 (a), and the 2nd filter part 15 in which the slit as shown in FIG.5 (b) was formed were formed. And. Although these are simplified in illustration, they are of a so-called cartridge type, and can be replaced simply by inserting a filter having a desired color (for example, blue) or a desired slit-shaped filter into the unit. Yes.

  Next, FIG. 6 shows a block diagram of a control system of an information terminal used in the optometry system according to an embodiment of the present invention.

  As shown in the figure, the information terminal 100 includes a control unit 101 such as a CPU (Central Processing Unit) that performs overall control. The control unit 101 is connected to the communication unit 102, the operation unit 103, the display unit 104, the imaging unit 105, and the storage unit 106 in a communicable manner.

  The communication unit 102 is a communication interface for communicating with an external server or the like via a network such as the Internet. The operation unit 103 and the display unit 104 may be integrated as a touch panel. The imaging unit 105 includes an imaging element such as a CCD (Charge Coupled Device). The storage unit 106 includes a memory and the like, and also stores a program 107 executed by the control unit 101.

  In such a configuration, the control unit 101 functions as the main control unit 101a, the image analysis unit 101b, the disease name identification unit 101c, the display control unit 101d, and the like by reading and executing the program 107 in the storage unit 106.

  The imaging lens 3 of the examination system 1 is located in front of the imaging unit 105. When the subject's eye, which is the subject, is imaged through the photographing lens 3, image data is sent to the control unit 101. In the control unit 101, the image analysis unit 101b analyzes the image data, refers to a DB such as a cloud server based on the analysis result, and the disease name identification unit 101c identifies the disease name. The display control unit 101d controls display by the display unit 104. In addition, the main control unit 101a performs overall control.

  According to the above configuration, if the optometry system 1 is mounted on the information terminal 100 and the subject's eye is photographed by the photographing function of the information terminal 100, the disease name can be temporarily specified based on the image analysis result. Therefore, it is expected to be used in the field of emergency medicine.

  Although one embodiment of the present invention has been described above, the present invention is not limited to this, and it is needless to say that various improvements and changes can be made without departing from the spirit of the present invention.

  For example, in the optometry system according to the above-described embodiment, a mechanism for positioning the subject is not particularly provided. For example, a positioning mechanism that protrudes forward from the upper position of the photographing lens and the upper position of the photographing lens is further provided. Needless to say, it may be configured to be positioned by bringing the tip of the head into contact with the head (particularly the forehead) of the subject.

  It is also possible to improve the operability by arranging a grip portion for giving a grip feeling during operation on the housing 2.

  For follow-up of outpatients, by wearing the device on the opposite side and using the smartphone's self-portrait camera, the patient takes a self-portrait and stores the captured still images and videos on the server side in the cloud It may be possible to receive a remote examination by a doctor in real time or after the fact.

  In addition to the above-described smartphone or the like, a notebook personal computer, a smart robot, or the like may be employed as a portable terminal having a photographing function.

DESCRIPTION OF SYMBOLS 1 Optometry system 2 Case 2a Flat plate 2b Base 2c Fixing member 3 Shooting lens 4 Axial member 5 Slit lamp unit 6a Leg member 6b Leg member 11 Power supply part 12 Light source 13 Condenser lens 14 First filter part 15 Second filter part 16 Projection lens 17 Illumination prism 18 Filter 100 Information terminal

Claims (7)

An optometry system used in combination with an information terminal having an imaging function,
A housing,
A fixing member for fixing the housing to the information terminal;
A photographic lens disposed in the housing;
An optometry system comprising a slit lamp unit connected to the housing. An optometry system used in combination with an information terminal having an imaging function,
A housing including a base and a fixing member for fixing the position to the information terminal;
A photographic lens disposed in the housing;
A shaft member rotatably provided on the base of the housing;
A slit lamp unit provided on the shaft member so as to be rotatable about the shaft member;
An optometry system comprising: The optometry system according to claim 1, wherein the slit lamp unit includes a light source, a condenser lens, a filter unit, a projection lens, and an illumination prism. The optometry system according to claim 3, wherein the filter unit includes a first filter unit having a color filter function and a second filter unit in which a slit is formed. The optometry system according to claim 4, wherein a filter made of translucent ground glass is provided on the exit surface of the illumination prism of the slit lamp unit so as to be freely opened and closed. The fixing member is a clamping member,
The fixing member is disposed on an upper portion of the housing;
The optometry system according to claim 1 or 2, wherein the position of the information terminal is fixed by clamping the information terminal with the clamping member from the front and rear. An optometry system used in combination with an information terminal having an imaging function,
A housing comprising a flat plate, a base projecting from the flat plate, and a fixing member for fixing the position by sandwiching the information terminal;
A photographic lens disposed in the housing;
A shaft member rotatably provided on the base of the housing;
A slit lamp unit provided on the shaft member so as to be rotatable about the shaft member, and comprising a light source, a condenser lens, a filter unit, a projection lens, and an illumination prism;
An optometry system that changes at least one of the color and the width of the irradiation light from the slit lamp unit by replacing the filter unit.